If you have a chaotic substitute, lead them toward another problem. Two chaos sources cancel each other out.
"Some substitutes are actually trained assassins from the Board of Education. For those... there is no tip. Just pray." Manual de Supervivencia Escolar de Ned 1x8
Ned whispers to Moze: "Don’t argue. You can’t win. Just pull out a blank sheet of paper, write 'THE ANSWER IS RESPECT' at the top, and doodle a sword. Substitutes only check for motion, not accuracy." If you have a chaotic substitute, lead them
"No one enters the Abyss without a claim ticket or a tear in their eye." Moze: "I lost a hair elastic in 2006." Gordon: "Provide a detailed sketch, and I will consider it." The Setpiece: The Sub Meets the Abyss Desperate for his hoodie (it has his only pen), Ned convinces Belvedoni that "interpretive geometry" is best explored in the basement. The entire class follows, turning the Lost-and-Found into a makeshift classroom. For those
"Hey, new students. Welcome to a special double-tip episode. You know that feeling when your regular teacher is out? The room smells different? The desk feels... hostile? That’s the Substitute Zone. But what if I told you that the Substitute’s power is nothing compared to the ancient evil that lives three floors down? I’m talking about the Lost-and-Found. Today, we learn to survive the Fill-In and retrieve your soul—I mean, your jacket—before it’s too late."